Reference guide

PyDSM © 2012–2025 Sergio Callegari. All rights reserved.

Some code portions confined in the pydsm.delsig module are ported or reimplemented from the DELSIG toolbox for MATLAB, copyrighted by R. Schreier.

PyDSM focuses on the design of Noise Transfer Functions for Digital ΔΣ Modulators and in the simulation of the resulting modulators.

Main modules

• Code ported/reimplemented from the DELSIG toolbox (pydsm.delsig)
• Synthesis of the NTF of Delta Sigma modulators (pydsm.NTFdesign)
• Simulation of Delta Sigma modulators (pydsm.simulation)
• Acoustic weighting functions (pydsm.audio_weightings)
• ISO 226 loudness countours (pydsm.iso226)

Utility modules

• Correlation utilities (pydsm.correlations)
• Fourier transform related routines (pydsm.ft)
• Computation of the impulse response of a DT filter (pydsm.ir)
• Compatibility functions for PyDSM (pydsm.relab)
• Generic utility functions (pydsm.utilities)

Error handling

• Exceptions and warnings (pydsm.exceptions)